What's all this wishy-washy stuff? Doesn't anyone here consider truth to be manifest?
Truth is the metalinguistic referent of true propositions, i.e. propositions whose meanings corresponds with objective reality.
Or as Tarski would put it:
'P' is True if and only if p.
For further reading check out: Tarski, A.; Davidson, D.; Wittgenstein, L.; Frege, G.; Russell, B.; Austin, J.L.; Kripke, S.; Dummett, M., etc.